test(test_sqlalchemy_repository): Refactors mock user creation in tests

Updates the mock user setup in unit tests to use actual Account
and Tenant instances instead of MagicMock. This change enhances
realism in tests by reflecting actual class structures and
relationships, aiding in more accurate test outcomes.

Signed-off-by: -LAN- <laipz8200@outlook.com>

api/tests/unit_tests/repositories/workflow_node_execution/test_sqlalchemy_repository.py

@@ -10,6 +10,7 @@ from sqlalchemy.orm import Session, sessionmaker
 
 from core.repositories import SQLAlchemyWorkflowNodeExecutionRepository
 from core.workflow.repository.workflow_node_execution_repository import OrderConfig
+from models.account import Account, Tenant
 from models.workflow import WorkflowNodeExecution
 
 
@@ -44,12 +45,16 @@ def session():
 
 @pytest.fixture
 def mock_user():
-    """Create a mock user for testing."""
-    user = MagicMock()
-    user.tenant_id = "test-tenant"
+    """Create a user instance for testing."""
+    user = Account()
     user.id = "test-user-id"
-    # Set up to be recognized as an Account
-    user.__class__.__name__ = "Account"
+
+    tenant = Tenant()
+    tenant.id = "test-tenant"
+    tenant.name = "Test Workspace"
+    user._current_tenant = MagicMock()
+    user._current_tenant.id = "test-tenant"
+
     return user